ALGAE: In White or Clear Pots

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 7 years ago.

Article Blog   Article Index
In areas of strong light algae grows inside plastic pots which are translucent; dark pots exclude light. A72-490
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Algae

Algae Comments
ALGAE: Control Use Physan 20, at the rate of 1/2 tpg. A78-495 0
ALGAE: Control in Cattleya House Physan 20 may be too expensive; Phygon is cheaper for use on evaporative cooling pads. A74-969 0
ALGAE: Control in Growing Trays After watering plants, rinse the tray grave1 if possible and allow grave 1 to dry fully to kill algae; repeat periodically; or, spray grave 1 with Simazine 80W, 1 tpq. A70-535 0
ALGAE: Control on Surface of Potting Medium Use 1.5 ttpg. of Maneb (Manzate) as heavy spray. A73-409 0
ALGAE: Controls When it occurs in a humidity tray holding water and pebbles, pour in a little chlorine (household bleach), let it remain for a while then decant and ventilate; or, use neutral copper. A86-929 0
ALGAE: In Osmunda Under Lights Usually caused by heavy organic fertilizers plus high humidity; harmful only if it excludes air from roots; use Physan 20. A79-910 0
ALGAE: In Pots Use of Bioquin satisfactory,address given; Manzate (Maneb) fungicide controls algae; use 1 ounce to 4 gals. water; various basic copper fungicides also control algae. A73-888; no safe algecide known. A77-1101 0
ALGAE: In Rainbarrel To destroy it add some sodium hypochlorite, then aerate to free the chlorine; exclude light by covering barrel with black polyethylene. A67-579 0
ALGAE: Interior of Greenhouse Wash off with soap and water, spray every few weeks with household bleach which does not harm plant materials but can harm the skin, so wash it off, if necessary. OR82-102 0
ALGAE: Its Effect on Plants Algae can be harmful to plants grown in clay or crockery pots by covering the roots, so wash it off the pots and water less. A81-688 0
ALGAE: On Plant Leaves Caused probably by too little light; low intensity of fertilizer on leaves promotes growth; it can cut down on photosynthesis. F68-187 0
ALGAE: On Potting Medium Surface Medium is 1 sand, 1 fir bark, 1 milled sphagnum; water well, then let the surface dry; syringe only in early morning. A77-527 0
ALGAE: On Stones in Tray Under Plants Humidity trays should be flushed with Clorox 20% solution and allowed to stand 15 minutes, then flushed again with water; replace the plants. A82-588 0
ALGAE: To Prevent Growth in Tanks Drain the tank; add Clorox 1 ttpg. and let stand one and a half hours; drain, replace with clear water. A65-53 0
ALGICIDES: Condensation Drip From Air Cap Insulation Promotes Algae To render drip harmless spray with Physan 20, 1/2 tpg. A79-124 0

New Topics

  1. Nancy Shapiro asked question Where did you find this type of orchid pot? in category General Discussion
  2. Charles H Wood asked question Orchids wanted St.Croix usvi in category General Discussion
  3. William Gorski asked question Is this a species or Primary Hybrid? in category General Discussion
  4. Therese Stecher asked question Banrot 40WP in category General Discussion
  5. Chen Jimmy asked question How to determine the species composition？ in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. Carol Holdren commented on topic "What is the culture for Cattliante Chongkolnee" by Mike Minney
  2. Dianne Mayne commented on topic "Banrot 40WP" by Therese Stecher
  3. Linda Thorne commented on member plant Paphiopedilum Munchkin Mopsi Aru by Linda Thorne
  4. Carol Holdren commented on topic "Orchids wanted St.Croix usvi" by Charles H Wood
  5. William Gorski commented on topic "Is this a species or Primary Hybrid?" by William Gorski
  6. Henry Shaw commented on member plant Coel. Jannine Banks 'Snow White' by Henry Shaw
  7. Carol Holdren commented on topic "Trichocentrum luridum" by Danny Lyon
  8. Carol Holdren commented on topic "How to determine the species composition？" by Chen Jimmy
  9. Lois Lane commented on member plant Ctna. Why Not by Alex Maximiano
  10. Carol Holdren commented on topic "SSPECIES OF ORCHID" by JENNIFER CHARMAN
  11. Carol Holdren commented on topic "Why can't I post on this site? " by Lois Lane
  12. Carol Holdren commented on topic "Historic Cattleya" by Karen Johansen
  13. Carol Holdren commented on topic "Encyclia aspera" by William Woodcock
  14. Jim McGuinn commented on topic "Designing a greenhouse for orchid growing" by Ron Hellendall
  15. Mark Bennett commented on member plant Sarcochilus Newbold Alta 'SBC092' by Mark Bennett
  16. Mark Bennett commented on member plant Sarcochilus Newbold High Noon 'SB140' by Mark Bennett
  17. Carol Holdren commented on orchid Epi. Moonlight Firefies
  18. Jeanne Uzar Hudson commented on topic "Paph Support" by Nicholas Levendosky
  19. Rosemary Chenery commented on topic "Lost tag - can anyone provide a name" by Rosemary Chenery
  20. Taylor Savage commented on topic "Myrmecatavola Frances Fox" by Elizabeth Wagner